What is smoke testing in software testing?

Smoke testing is a quick validation of core software functionality to ensure the build is stable enough for further testing. It acts as the first quality gate in the QA process.

Why is smoke testing important?

It helps detect critical failures early, prevents wasting QA effort on unstable builds, and ensures confidence in proceeding to deeper test phases like regression or system testing.

How does smoke testing differ from sanity testing?

Smoke testing verifies the basic functionality of a build, while sanity testing focuses on specific modules or bug fixes to confirm they work before moving forward.

When should smoke testing be done?

Smoke tests should be executed after every new build, during CI/CD processes, after major code merges, or before full test cycles to verify build stability.

Can smoke testing be automated?

Yes, smoke tests are ideal for automation and are commonly integrated into CI/CD pipelines to ensure fast and reliable build validation.

Who performs smoke testing in Agile and DevOps?

Developers, QA engineers, or CI/CD tools (like Jenkins, GitHub Actions) typically perform smoke testing depending on the project stage and automation level.

What tools are used for smoke testing?

Common tools include Selenium (web), Appium (mobile), Postman or REST Assured (API), BrowserStack (cross-browser/device), and Jenkins/GitHub Actions for automation.

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June 1, 2021